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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/62904

Title: Hand-held dynamometry: tester strength is paramount, even in frail populations.
Author: KENNY, ROSE ANNE
Author's Homepage: http://people.tcd.ie/rkenny
Keywords: Gerontology
hand-held dynamometry
Issue Date: 2011
Citation: Stone CA, Nolan B, Lawlor PG, Kenny RA, Hand-held dynamometry: tester strength is paramount, even in frail populations., Journal of Rehabilitation Medicine, 43, 9, 2011, 808 - 811
Series/Report no.: Journal of Rehabilitation Medicine;
43;
9;
Abstract: To determine test-retest and inter-rater reliability of hand-held dynamometry when used to measure knee--extensor strength in patients with advanced cancer. SUBJECTS: Adults with metastatic or locally advanced cancer recruited from palliative care services to a study of the risk factors for falls. METHODS: Consecutive recruits (n = 30) underwent repeat testing after an interval of 1 h, by the same researcher, to assess test-retest reliability. The subsequent 15 patients underwent retesting by a second researcher. The intra-class correlation coefficient and limits of agreement were calculated. RESULTS: The test-retest reliability difference between measurements increased with the magnitude of measurement, mean leg strength = 113 N (standard deviation 43.1), 95% ratio limits of agreement 0.81-1.5, intra-class correlation coefficient = 0.9. The inter-rater testing mean leg strength = 128.5 N (standard deviation 35.1), 95% limits of agreement = -57.24 to 36.06 N. Intra-class correlation coefficient = 0.83. CONCLUSION: Test-retesting and inter-rater testing yielded high intra-class correlation coefficients, but the limits of agreement were wide. In test-retesting, the difference between tests increased as the magnitude of measurement increased. It has been widely reported that hand-held dynamometry is reliable when used to measure knee-extensor strength in frail or elderly persons. However, our results show that, even in these populations, reliability may be compromised by inadequate tester strength.
Description: PUBLISHED
URI: http://hdl.handle.net/2262/62904
Related links: http://dx.doi.org/10.2340/16501977-0860
Appears in Collections:Medical Gerontology (Scholarly Publications)

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